Home / 3,779.84-5,215.11-2,382.59

Finding the Fourth Proportional to 3,779.84, 5,215.11 and 2,382.59

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Solution

The fourth proportional to 3,779.84, 5,215.11 and 2,382.59 is: 3,287.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,779.84 : 5,215.11 = 2,382.59 : x
  2. Step 2: Convert to fraction form
    3,779.84/5,215.11 = 2,382.59/x
  3. Step 3: Cross multiply
    3,779.84x = 5,215.11 × 2,382.59
  4. Step 4: Simplify right side
    3,779.84x = 12,425,468.93
  5. Step 5: Solve for x
    x = 12,425,468.93/3,779.84
  6. Step 6: Final answer
    x = 3,287.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.